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Siemens MBK150A Main Breaker Kit
Siemens
MBK150A
Main Breaker Kit
Brand
Siemens
SKU
MBK150A
Quantity
Core Specs
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Siemens MBK150A - 150A 2 Pole Main Breaker Kit
New
Quantity
Quantity
Siemens MBK150A - 150A 2 Pole Main Breaker Kit
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | MBK150A |
| Series | MBK |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Ultimate Load Centers, PL Series, ES Series |
| Wire Gauge | 1 AWG - 3/0 AWG (Cu/Al) |
| Max Wire | 3/0 AWG |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Mounting Hardware, Breaker, Lugs Included |
| Standards | UL 489, CSA C22.2 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker Kit, 22kA Interrupt Rating, Common Trip |
Sold out
Quantity
Siemens MBK150A - 150A 2 Pole Main Breaker Kit
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | MBK150A-R |
| Series | MBK |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Ultimate Load Centers, PL Series, ES Series |
| Wire Gauge | 1 AWG - 3/0 AWG (Cu/Al) |
| Max Wire | 3/0 AWG |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Mounting Hardware, Breaker, Lugs Included |
| Standards | UL 489, CSA C22.2 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker Kit, 22kA Interrupt Rating, Common Trip |
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Description
Serving as the primary disconnect for residential systems, the Siemens MBK150A is a 150A main breaker conversion kit. Operating at 120/240VAC, this two-pole breaker ensures safe and reliable power distribution throughout the home. Designed to mount into Siemens Ultimate, PL, and ES series load centers using a secure bolt-on connection. It acts as a replacement for the older MBK150 and EQ9683 models. Featuring a 22kAIC interrupt rating, this kit handles substantial fault currents.Specifications
| Brand | Siemens |
|---|---|
| Part Number | MBK150A |
| Series | MBK |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Ultimate Load Centers, PL Series, ES Series |
| Wire Gauge | 1 AWG - 3/0 AWG (Cu/Al) |
| Max Wire | 3/0 AWG |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Mounting Hardware, Breaker, Lugs Included |
| Standards | UL 489, CSA C22.2 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker Kit, 22kA Interrupt Rating, Common Trip |
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All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 9 reviews.
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Rating
9 reviews
- RRRichard R.Verified BuyerReviewingSiemens MBK175A - 175A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars10/16/26Main breaker replacement
I was in a real in real bind. I needed a main breaker in a size that everyone told me wasn’t available anymore . Mike at Super Breakers proved them wrong. They not only had the breaker in stock but I had it the next day.
Thank you
Richard Reeves
Reeves Electric Inc
- MEmichael e.Verified BuyerReviewingSiemens MBK150 - 150A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars9/28/26Excellent 👍
Came quickly, in great condition, worked perfectly
- RNRoderick N.Verified BuyerReviewingSiemens MBK200 2 Pole Circuit BreakerI recommend this productRated 5 out of 5 stars7/29/25Exact replacement!
Exact replacement 👍
- WKWilliam K.Verified BuyerReviewingSiemens MBK175A - 175A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars7/29/25Works perfey
Brand new, just as described. This was an odd amperage amount to stock, I'm glad they had this.
- MBMike B.ReviewingSiemens MBK200A - 200A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars3/11/21Classy Breaker
Brand new item, came packaged well. Quick deliverly